Home / 211,159.64-291,403.50-115,666.04

Finding the Fourth Proportional to 211,159.64, 291,403.50 and 115,666.04

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Solution

The fourth proportional to 211,159.64, 291,403.50 and 115,666.04 is: 159,620.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,159.64 : 291,403.50 = 115,666.04 : x
  2. Step 2: Convert to fraction form
    211,159.64/291,403.50 = 115,666.04/x
  3. Step 3: Cross multiply
    211,159.64x = 291,403.50 × 115,666.04
  4. Step 4: Simplify right side
    211,159.64x = 33,705,488,887.14
  5. Step 5: Solve for x
    x = 33,705,488,887.14/211,159.64
  6. Step 6: Final answer
    x = 159,620.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.